PLATE IV. 
Fig. 1. 
Chalk Marl, Compton Bay, Isle of Wight (near the base.) 
A shelly Chalk Marl, the shell fragments in this case are chiefly 
derived from Inoceramns and Terebratula, 
a.a. Inoceiamus prisms ; b. fragment of Terebratula ; c. Globigerina 
cretacea; d. a grain of glauconite; e. foraminiferal cell partly filled 
with glauconite. 
Fig. 2. 
Chalk Marl, Charlton Cutting, Midland Railway, about 4j miles 
N.W. of Luton ; 10 ft. below the Totternhoe Stone. 
This marl consists chiefly of amorphous material and small shell 
particles, a few larger fragments and foraminifera. 
a.a. Inoceramus prisms ; b. Globigerina cretacea ; c. Pulvinulina; 
d. Anomalina ammonoides 
